Embroidering-machine.



No. 771,000. PATBNTED SEPT. 27, 1904.

G. L.B0URQU1N @L R. LOBB.

EMBROIDERING MACHINE.

APPLIoAT'IoN FILED M1111 20. 1090.

No MODEL. 4 a SHEETS-SHEET 1.

PATENTED SEPT. 27, 1904. G. L. BOURQUIN & R. LOEB. EMBROIDERING MACHINE.

ABPLIGATION FILED MAY 26. 1899.

NO MODEL.

3 SHEETS-SHEET 2.

No. 771,000. PATENTED SEPT. 27, 1904. G. L. BOURQUIN z R. LUEB.

EMBROIDERING MACHINE.

APPLIUATION FILED MAY Z6, 1899.

N0 MODEL. 3 SHEETS-SHEET 3.

vUNITED STATES Patented September 27', 1904.

PATENT OEEICE.

GUSTAVE LOUIS BOURQUIN, OF MEROHANTVILLE, AND RUDOLF LOEB, OF OAMDEN,NEIV JERSEY, ASSIGNORS TO SAID LOEB.

EMBROlDERlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 771,000, datedSeptember 27, 1904.

Application filed May 26, 1899. Serial No. 718,329. (No model.)

den, in the county of Camden and State of N ew Jersey, have inventedcertain Improvements in Embroidering-Machines, of which the following isa speciication.

Our invention relates to embroidering-machines; and it consists ofcertain improvements on the machine for which we iiled application forLetters Patent August 6, 1898, Serial No. 687,946, the presentimprovements greatly reducing the complexity of the machine thereindescribed and claimed and con'- stituting a machine capable of producinga greater amount of work in a better manner than hitherto possible withembroidering-machines of this character.

Our invention consists, further, of novel means for operating andcontrolling the looper and thread-feeding mechanism.

Our invention is fully illustrated in the accompanying drawings, inwhich- A Figure 1 is a plan View of suflicient of anembroidering-machine of the type described to illustrate our invention.Fig. 1n is a side View of a portion of the mechanism shown in Fig'. 1.Fig. .2 is a sectional view of the machine on the line a a, Fig. 1,showing the pantograph mechanism. Fig. 3 is a sectional view on the lineo o, Fig. 1, showing the needle mechanism and the looper mechanism. Fig.4 is an enlarged sectional view of the end of the needle-carrier and thelooper. Fig. 5 is a plan view, on an enlarged scale, of the fliercarrying the thread and the looper and the mechanism for operating andcontrolling the same. Fig. 6 is a sectional elevation, on an enlargedscale, of the liier and its operating mechanism, taken on the line c o,Fig. 5. Fig. 7 is a cross-section of the flier on the line Z 6l, Fig. 6;and Fig. 8 is a sectional View of a detail of tlielooper-drivingmechanism, taken on the line e e, Fig.

The general operation of this type of embroidering-machine being' fullydescribed in our application before referred to now on file, it will notbe necessary to dwell upon the 5o same in this specification.

In the drawings herewith, 1 represents the bed-plate of anembroidering-machine, mounted on the supporting-legs 2. The bed-plate iscut away at the center to provide space for 5 5 the movement of thework-holding frame 3, to which the material to be embroidered is secured in the usual well-known manner.

4 and 5 are the driving-shafts, which receive their motion from anysuitable source of 6o power, and they are mounted in suitable bearingson the opposite sides of the machine.

6 represents one of the pantograph-plates, and 7 and 8 are thepantograph mechanisms carrying the wheels 9 and 10-in engagement 65 withthe same, 7 being the front pantograph mechanism, carrying the wheel 9,which receives its rotary motion from the shaft ,and 8 being the rearpantograph mechanism, carrying the wheel 10, which is rotated by the 7oshaft 4. The mechanisms driven by the shafts 4 and 5 for rotating thesewheels 9 and 10 of the front and rear pantograph mechanisms is the sameas that employed in the machine forming the subject of our applicationnow on tile and entire pantograph mechanism is turned so as 8O to bringthese wheels at different angles to the pantograph-plate 6, therebymoving said plate and the work-carrying frame connected therewith so asto bring the fabric carried thereby into the proper position withrelation 8 5 to the needles and loopers to receive embroiderycorresponding to the design on the pattern-plate which is'followed bythe operator. The front pantograph mechanism receives its motion from ashaft 11, mounted in suitable bearings on the bed-plate of the machine,said shaft being moved directly by the operator in following the designon the pattern-plate. To transmit this motion to the rear pantographmechanism, we employ a counter-shaft 12,

mounted in suitable bearings on the bed-plate at the end ofthemachine,and this shaft serves to drive the shaft 13, which is in operativeengagement with the rear pantograph mechanism. The counter-shaft 12 isprovided with bevel-gears 12lL at cach end of the same, meshing' withsimilar gears 11" and 13, carried by the shafts 11 and 13, respectively.The shaft' 13 is a short shaft, and in addition to driving the rearpantograph mechanism it carries mechanism connected to and adapted toimpart an intermittent movement to a shaft 14, arrang'ed in line withthe shaft 13. This shaft 14 serves to drive the fliers 15 and theloopers 16, carried thereby. The mechanism for imparting theintermittent movement to the shaft 14 will be more fully describedhereinafter. l

The fliers 15, carrying the loopers 16, are provided with hubs 17,adapted to suitable bearings18 on the bed-plate of the machine at oneside of the work-holding frame. )n the opposite side of the bed-plateare the needle-carriers19, in which the needles 2O are arranged, andthese needle-carriers are adapted to suitable bearing's 21, the needlesbeingarranged in line with the loopers. Both needles and loopers arerotated through the medium of the shafts 11 and 14, respectively, whichare mounted above the same, the needle-carriers being' provided withgears 22, meshing' with similar gears 23, carried by the shaftll,

. and the hubs 17 of the liiers being provided with gears 24, meshingwith similar gears 25, carried by the shaft 14. Mechanism to move theneedles into and out of engagement with the material to be embroidered,including arms 26 and 27,connected thereto, is located beneath thebed-plate of the machine and is driven by the shaft 5.

Instead of the usual liXed spool for carrying the thread, with a seriesof thread-guides and automatic stop-motions for stopping' the machinewhen a thread breaks, we arrange a series of fliers 15, adapted to carryremovable spools 28, which fliers and spools move constantly in onedirection when the machine is in operation. As noted above, the fliersare driven through the medium of the gears 24 and.25. A spindle 29 forthe spool is hinged at 30 to the flier, so that it may be raised to lita new spool in place when the thread from one gives out. The gears 25,mounted on the shaft 14 and serving' to drive the fliers 15, are eachprovided with clutches 31 for throwing' them out of action when a threadbreaks. These clutches are operated by the attendant in charge of the embroidering'mechanism, and this arrangement permits any one of theloopers to be thrown out of action without disturbing any of the rest orthe necessity of stopping' the machine to splice a thread. This is animportant feature where the machine is one of great length. The iiiers16 are driven continuously, and to provide for the necessary pauses mthe rotation of the loopers cari'ied by the same to make the stitchspecial controlling' mechanism is interposed 'between the shafts 13 and14, before referred to. By this arrangement, which is timed with thepantograph mechanism, the needle is always presented to the looper atthe proper angle to receive the thread and make the stitch, and themaking of a stitch is assured every time the needle passes through thematerial to be embroidered.

The needle-carriers 19 are mounted on the bed-plate of the machine andare of the same construction and are operated in substantially the samemanner as the needle-carriers of our former application. Their rotativemovement is intermittent, backward and forward, determined by themovement of the indexpoint moved by the operator in following the designon th'e pattern-plate, whereby the pantograph mechanisms are operated.The nee dle-carriers are provided with the usual means for moving' theminto and out of engagement with the material to be embroidered. 1n orderthat the material may be kept at the proper tension to receive theembroiderystitches, a stitch-plate 32 is arranged in line with the faceof the loopers and adjacent thereto, suitably supported, so that itmaintains one position with relation to the needles and loopers.

The embroidering'- thread is carried by spools 28, mounted in the liiers15, which are driven from the shaft 14 through the medium of the gears24 and 25. The hubs 17 of the fliers, which carry the gears 24, aremounted in suitable bearings 18, secured to the bedplate of the machine.The spindles 29 for the thread-spools 28 are hinged at 30 to the fliers,which are provided with seats 33 at the outer' ends of the same for theends of the spindles. To this seat is hinged a lcover 34, adapted to`hold the spindle in place, and this cover is retained in its closedposition by a spring 35, eng'aging a lug 36 on the cover. The end of thespool is notched at 37 and is adapted to engag'e a lug 38 on the spindle29, so that the spool will be positively driven by the same.

-The spindle is preferably hollow for the sake of lightness. Toaccommodate the flier as it is constantly rotating', the bed-plate ofthe machine is cut away at 39.

The gears 25, which drive the gears 24 to rotate the fliers 15, areloose on the shaft 14, and clutches 31, splined to this shaft, areprovided for the purpose of connecting' these driving elements tooperate the fliers and loopers. To prevent lateral movement of the gears25 on the shaft 14, we provide collars 25, (shown clearly in Fig. 8,)having reduced portions adapted to lit cut-out portions in the face ofthe gears 25, the engagement of these gears 25 with the gears 24preventing'any lateral movement in the opposite direction. The sleeve ofthe clutch is provided with a single tooth 40, adapted to engag'e anotch 41 in the hub of the TOO IIO

gear 25. This sleeve is actuated by a lever 42, pivoted at 43 to asupport 44, mounted on the bed-plate of the machine, and this levercarries a yoke 45, adapted to engage the sleeve, whereby positivemovement of the same is effected. The clutches are normally inengagementwith the gears and are held in this position by a spring 46,interposed between the clutch-sleeve and a collar 47, fixed to the shaft14. The outer end of the lever 42 I rests on a bar 48, carried bysuitable supports 49, mounted on the bed-plate of the machine. This baris provided with a series of lugs or stops 50, adjacent to the levers42, adapted to hold said levers when it is desired to throw any one ofthe clutches out of engagement with the gears 25. The portion of the baradjacent to these lugs or stops is inclined upward slightly, so that thelever must be raised slightly when it is moved to engage said lugs.

Interposed between the shaft 13, which operates the rear pantographmechanism, and the shaft 14, which rotates the fliers and the looperscarried thereby, is the mechanism for giving' the loopers theintermittent rotative movement. rlhis shaft 13 is mounted in suitablebearings 51 and 52 and has an enlarged portion which carries at itsextreme end a spindle-bearing 54 for a bevel-gear 55. Adapted to theenlarged portion of the shaft 13 is a sleeve 56, having a gear-wheel 57,which receives its motion from an intermediate gearwheel 58, mounted insuitable bearings 59, secured to the bed-plate of the machine, from agear-wheel 60, carried by the main drivingshaft 4. At the opposite endof the sleeve 56 is a bevel-gear 61, meshing with the bevelgear 55. Theshaft 14 is carried by a series of bearings 62, (two of which areshown,) and this shaft carries at its end a bevel-gear 63, meshing withthe bevel-gear 55, through which connection the shaft 14 receives itscontinuous rotative movement. When the driving-shaft 4 is in motion, thesleeve 56, mounted on the shaft 13, is driven in the same direction, andthis motion being transmitted to the shaft 14 through the medium of thebevel-gears 5,5, 61, and 63 said shaft 14 is simply rotated in onedirection, as the bevel-gear 55 is simply turned on its axis, as theshaft 13 is stationary. If, however, the pantograph mechanism is throwninto action, the shaft 13 is set in motion, and the bearing 54 for thebevel-gear 55 is turned, and instead of imparting an uninterruptedmovement to the shaft 14 an intermittent movement is imparted to saidshaft, it turning faster when moving in the same direction as the sleeve56 and being held temporarily when turned in the opposite direction, itsintermittent movement being determined by the shaft 13 for operating therear pantograph mechanism and controlled by the operator, so that theloopers may always be presented to the needles in the right positionwhen a stitch is to be formed in the fabric operated upon.

Having thus described our invention, what 1. rPhe combination in anembroidering-machine of the character described, of the bedplate, needlemechanism and looper mechanism mounted on the bed-plate, a work-holdingframe, pantograph-plates at each end of said frame, pantograph-wheelsbearing on both the front and back of each plate, means for operatingthe several pantograph mechanisms in unison, said means serving also torotate the needle mechanism and looper mechanism, said looper mechanismbeing driven by a shaft disconnected from the pantograph-driving shaftbut in line therewith, and means connecting said shafts whereby thelooper mechanism may be given an intermittent rotative movement,substantially as described.

2. The combination in an embroidering-machine of the characterdescribed, of the bedplate, needle mechanism and looper mechanismmounted on the bed-plate, a work-holding frame, pantograph-plates ateach end of said frame, pantograph mechanisms in engagement with saidplates, shafts mounted on the bed-plate and serving to rotate theneedlesA and loopers, said shafts beingmoved directly by the operator infollowing the design on the pattern-plate, a shaft for driving thelooper mechanism arranged in line with the pantograph-operating shaft,and coacting mechanism disposed between said shaft whereby a continuousrotative movement may be imparted to the looper independently of theintermittent movement ofthe pantograph mechanism, substantially asdescribed.

3. The combination in an embroidering-machine of the characterdescribed, of the bedplate, needle mechanism and looper mechanismcarried thereby, a shaft for driving one side of the pantographmechanism and the needle mechanism, a shaft for driving the oppositeside of the pantograph mechanism, a shaft in line with said latter shaft and coacting therewith for driving the looper mechanism, and meansconnecting said shafts, the needle mechanism being given a partialrotation only in both directions while the looper mechanism is movedcontinuously in one direction, the mechanism connecting the looperdriving' shaft and the pantograph-operating shaft in line therewith,serving to change the speed of the looper mechanism intermittently, suchchanges being coincident with the changes of motion of the needlemechanism, in order to present the needles to the loopers in the properposition, substantially as described.

4. The combination in an embroidering-machine of the characterdescribed., of a series of loopers adapted to be given an intermittentcontinuous movement, shafts for driving said loope1s,iiiers mounted onthe shafts and carrying the looper, a pantograph-shaft, and alooper-driving shaft mounted in line with said IOO IIO

pantograph-shaft and operatively connected to, but not forming part of',said pantographshaft, substantially as described.

5. The combination in an embroidering-machine of' the characterdescribed, of' a series of loopers, shafts for driving said loopers,fiiers to which the loopers are connected car rying the spools ofeinlnoidery-thread, spindles for the thread-spools hinged to thel'liers,means for retaining the spools in the fiiers, and means for giving saidfliers a continuous intermittent rotative movement, substantially asdescribed.

6. The combination in an embroiderin g-m achine of the characterdescribed, ofl a series of loopers, shafts lfor driving` said loopers,fliers to which the loopers are connected car rying spools ofembroidery-thread, spindles for said thread-spools hinged to the fliers,means for retaining the spools in the fliers, and lugs carried by saidspindles adapted to engage the spools and hold the same in operativeengagement therewith, substantially as described.

7. The combination in an embroidering-machine of the characterdescribed, of a series of loopers, fliers to which the loopers areconnected carrying the spools of embroiderythread, spindles for saidthread-spools hinged to the fliers, and means for retaining the spoolsin the fliers comprising a hinged cover adapted to rest over the end ofthe spindle and hold it to its seat, with means for retaining said coverin place, substantially as described.

8. The combination in an embroidcring1na chine of the characterdescribed, of a series of loopers, shafts for driving the same, gearsfixed to said shafts, a driving-shaft, a series of gears loose on thesame, means for maintaining said gears in engagement with the gears ofthe looper-shaft, a series of clutches independently operated formaintaining an opera- 9. The combination in an embroidering-machine ofthe character described, of a series ofl loopers, shafts for driving thesame,gears fixed to said shafts, a driving-shaft, a series of gearsloose on the same held against lateral movement and meshing with thegears of the looper-shaffts, and a series of clutches for maintaining anoperative connection between the driving shaft and the looper shafts,said clutches carrying a single tooth adapted to engage a notch in thehub of the loose gears, and controlled by levers mounted on postsadjacent to the fliers, with means for holding said clutches inengagement with the loose gears, substantially as described.

10. The combination in an embroideringmachine of the characterdescribed, of a series of loopers, shafts for driving the same, gearslliXed to said shafts, a driving-shaft, a series of gears loose on thesame meshing with the gears of the looper-shafts, a series of clutchesfor maintaining an operative connection between the driving-shaft andthe looper-shafts, levers for controlling said clutches, a rail carriedby suitable supports on the bed-plate of the machine upon which theclutch-levers rest, and lugs adapted to hold said levers when theclutches are moved out of' engagement with the loose gears,substantially as described.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

GUSTAVE LOUIS BOURQUIN. RUDOLF LOEB. lNlitiiesses:

MURRAY C. BOYER, Jos. H. KLEIN.

